65215455945152 has 112 divisors (see below), whose sum is σ = 131569309388160. Its totient is φ = 32068472832000.

The previous prime is 65215455945131. The next prime is 65215455945161. The reversal of 65215455945152 is 25154955451256.

It is a super-2 number, since 2×65215455945152² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65215455945091 and 65215455945100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 927678068 + ... + 927748364.

It is an arithmetic number, because the mean of its divisors is an integer number (1174725976680).

Almost surely, 2^{65215455945152} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65215455945152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65784654694080).

65215455945152 is an abundant number, since it is smaller than the sum of its proper divisors (66353853443008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65215455945152 is a wasteful number, since it uses less digits than its factorization.

65215455945152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71270 (or 71260 counting only the distinct ones).

The product of its digits is 54000000, while the sum is 59.

The spelling of 65215455945152 in words is "sixty-five trillion, two hundred fifteen billion, four hundred fifty-five million, nine hundred forty-five thousand, one hundred fifty-two".